IB/mlx4: Micro-optimize mlx4_ib_post_send()

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Rather than have build_mlx_header() return a negative value on failure
and the length of the segments it builds on success, add a pointer
parameter to return the length and return 0 on success.  This matches
the calling convention used for build_lso_seg() and generates slightly
smaller code -- eg, on 64-bit x86:

add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-22 (-22)
function                                     old     new   delta
mlx4_ib_post_send                           2023    2001     -22

Signed-off-by: Roland Dreier <rolandd@cisco.com>

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Roland Dreier 2008-04-16 21:09:28 -07:00

parent b832be1e40

commit f438000f7a

1 changed files with 8 additions and 8 deletions

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drivers/infiniband/hw/mlx4/qp.c

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